Mouthpiece for all brass musical instruments



1 1941- A. s'. HULSAVE 2,232,608

I MOUTHPIECE FOR ALL BRASS MUSICAL INSTRUMENTS Filed Spt. 25, 1940 l l mm-- 'I I VWVIIIIIIIIII. n--- i INVENTOR.

Patented Feb. 18, 1941 UNITED STATES PATENT OFFICE MOUTHPIECE FOR ALL BBA-SS MUSICAL INSTRUMEN TS Claims.

My invention relates to mouthpieces for musical i-nstruments and refers more particularly to mouthpieces for bugles, cornets, etc.

One object of my invention is to provide a 5 mouthpiece wherein the sound chamber is provided with a series of steps from the inlet of the bell to the entrance into the throat.

Another object of my invention is to provide a mouthpiece wherein the sound chamber is provided at its inlet with an undercut formed to create a suction holding the lips of the player rmly in place and a series of sharply defined steps from the inlet of the bell to the entrance of the throat.

A still further object of my invention is to provide a mouthpiece wherein the sound chamber is rovided with a charply defined undercut portion under the inside periphery of the bell lip and a series of radially arranged steps rounding into each other providing no sharp corners.

The particular object of my invention of this type of mouthpiece which is one that will enable any one who plays the bugle (especially those who play in the Army) trumpet cornet etc., to obtain very sharp, clear, piercing, penetrating notes or tones, no matter how any person may blow into the mouthpiece, because the formation or Construction of the roof of the mouth and the teeth of most every player are not just alike, so that in this invention the column of air passing through the vibrating lips of the player will successively strike the substantially fiat portion of the steps in the tone chamber and will vibrate on these steps and the vibrations will pass into the throat of the mouthpiece or the outlet of the said tone chamber which will thus produce very sharp, clear, piercing and penetrating notes or tones and, furthermore, said vibrations, notes or tones will be increased, multiplied, and amplied in the said tone chamber for the reason that the lips of the player are held in seal in and against the rim of said mouthpiece, which is out and overhanging the tone chamber, producing a partial vacuum under the said overhangingthe-tone-chamber-rim and therefore no vibrations or air can escape from the lips or the corners of the mouth of the player but must pass through the tone chamber and the throat of said u illustrated in the accompanying drawing wheremouthpiece into the bugle, trumpet, cornet,'

in similar parts are referred to by like numerals throughout the several views, in which,

Figure 1 is a section of a mouthpiece with sharply undercut portions.

Figure 2 is a section of a mouthpiece with rounded steps.

In Figure 1, the body l, is preferably round, tapering at 2, toward the outlet and on the inlet end 3, is a bell shaped portion providing a tone chamber 4, a throat 5, and a tapered portion 6, tapering toward the outlet end.

The bell portion 3, has a rounded outlet 1, that is sharply undercut at 8, and a series of steps 9, having sharp corners o.

In Figure 2, the body ID, is similar but not exactly the same as in Figure 1, being of dierent Construction and of different proportions and has an outside tapered portion Il, an inside tapered portion |2, a throat !3, and a relatively deep tone chamber !4, a rounded lip [5, sharply undercut at IS and a series of steps I'I, that round into each other at l8.

This rounding away of the steps into each other does away with all the sharp corners except at !6, where a sharp corner is required to produce a partial vacuum.

Having thus illustrated and described the preferred embodiment of my inventiton, I do not wish to limit myself to the exact Construction or arrangement of parts shown, since it is evident that modifications may be made therein without departing from the spirit of the invention or scope of the claims.

I claim:

1. In a mouthpiece for musical instruments, a mouthpiece having a tapered shank, a bell shaped tone chamber, an undercut portion on the inside periphery of the said bell shaped por tion, and a series of sharply cut graduated steps therein.

2. In a mouthpiece for musical instruments, a mouthpiece having a round body with a beaded inlet, an undercut portion on the inside periphery of said bell shaped portion, a shank on the said bell shaped portion and a series of sharply cut substantially flat steps therein.

3. In a mouthpiece for musical instruments, a mouthpiece with a tone chamber and a throat, said mouthpiece having a round body and a shank, tapered on one end, a bell shaped tone chamber with a beaded outlet on the other end, an undercut portion on the inside periphery of the said bell shaped portion and a series of sharply cut steps decreasing in diameter towards said throat therein spaced apart from said throat.

4. In a mouthpiece for musical instruments, a a mouthpece having a tone chamber and a mouthipece'with a. tone chamber and a. throat, having a round body and a shank, said body tapered on the inside on one end, a bell shaped tone chamber on the other end with a beaded outlet, an undercut portion on the inside periphery, undercut sharply, of the said bell shaped portion and a series of sharply cut graduated, substantially fiat steps therein.

5. In a mouthpiece for musical instruments,

throat and a round body with a tapered shank, said bell shaped tone chamber having a beaded outlet, a, sharply undercut portion on the inside perphery of said bell shaped portion and a series of steps substantally fiat rounding smoothly into each other presenting no sharply cut por tions within the said tone chamber. 

